llvm-project/lldb/tools/lldb-server/LLDBServerUtilities.cpp
Pavel Labath 145d95c964 Move Args.cpp from Interpreter to Utility
Summary:
The Args class is used in plenty of places besides the command
interpreter (e.g., anything requiring an argc+argv combo, such as when
launching a process), so it needs to be in a lower layer. Now that the
class has no external dependencies, it can be moved down to the Utility
module.

This removes the last (direct) dependency from the Host module to
Interpreter, so I remove the Interpreter module from Host's dependency
list.

Reviewers: zturner, jingham, davide

Subscribers: mgorny, lldb-commits

Differential Revision: https://reviews.llvm.org/D45480

llvm-svn: 330200
2018-04-17 18:53:35 +00:00

66 lines
2.3 KiB
C++

//===-- LLDBServerUtilities.cpp ---------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "LLDBServerUtilities.h"
#include "lldb/Core/StreamFile.h"
#include "lldb/Utility/Args.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/StreamString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/FileSystem.h"
using namespace lldb;
using namespace lldb_private::lldb_server;
using namespace llvm;
static std::shared_ptr<raw_ostream> GetLogStream(StringRef log_file) {
if (!log_file.empty()) {
std::error_code EC;
std::shared_ptr<raw_ostream> stream_sp = std::make_shared<raw_fd_ostream>(
log_file, EC, sys::fs::F_Text | sys::fs::F_Append);
if (!EC)
return stream_sp;
errs() << llvm::formatv(
"Failed to open log file `{0}`: {1}\nWill log to stderr instead.\n",
log_file, EC.message());
}
// No need to delete the stderr stream.
return std::shared_ptr<raw_ostream>(&errs(), [](raw_ostream *) {});
}
bool LLDBServerUtilities::SetupLogging(const std::string &log_file,
const StringRef &log_channels,
uint32_t log_options) {
auto log_stream_sp = GetLogStream(log_file);
SmallVector<StringRef, 32> channel_array;
log_channels.split(channel_array, ":", /*MaxSplit*/ -1, /*KeepEmpty*/ false);
for (auto channel_with_categories : channel_array) {
std::string error;
llvm::raw_string_ostream error_stream(error);
Args channel_then_categories(channel_with_categories);
std::string channel(channel_then_categories.GetArgumentAtIndex(0));
channel_then_categories.Shift(); // Shift off the channel
bool success = Log::EnableLogChannel(
log_stream_sp, log_options, channel,
channel_then_categories.GetArgumentArrayRef(), error_stream);
if (!success) {
errs() << formatv("Unable to setup logging for channel \"{0}\": {1}",
channel, error_stream.str());
return false;
}
}
return true;
}